Magnetic orientation device and printing apparatus

Abstract

The application discloses a magnetic orientation device and a printing device. The magnetic orientation device comprises a magnet and a magnetic conductor. The magnet is provided with a through hole, and the center axis of the through hole is parallel to the magnetization direction of the magnet. The magnetic conductor is at least partially located in the through hole. The application can form a composite magnetic field for printing a security pattern through simple combination of the magnet.

Description

Technical Field

[0001] This application relates to the field of magnetic orientation technology, and in particular to a magnetic orientation device and printing equipment. Background Technology

[0002] Anti-counterfeiting technology plays a crucial role today, appearing on various security documents, currency, and packaging for luxury goods. The market demands that anti-counterfeiting technology be "easy to identify and difficult to counterfeit." Patterns can be created by controlling the directional arrangement of magnetic or magnetizable pigment flakes using a magnetic field. These patterns possess strong anti-counterfeiting properties and are "easy to identify and difficult to counterfeit."

[0003] However, this method of printing anti-counterfeiting patterns using magnetic fields is not common and lacks aesthetic appeal, failing to meet the growing demands of the public and the market. Furthermore, the magnetic orientation devices used to generate the magnetic field contain an excessive number of magnets, resulting in complex structures, high costs, and monotonous effects. Summary of the Invention

[0004] This application provides at least one magnetic orientation device and printing equipment, which can form a composite magnetic field for printing anti-counterfeiting patterns through a simple combination of magnets.

[0005] The first aspect of this application provides a magnetic orientation device, which includes: a magnet having a through hole, the central axis of the through hole being parallel to the magnetization direction of the magnet; and a magnetic conductor, at least partially located within the through hole.

[0006] The first aspect of this application provides a printing apparatus, which includes the magnetic orientation device described above.

[0007] The beneficial effects of this application are: by guiding the magnetic field lines of the magnet through a magnetic conductor placed inside the through hole, the magnetic field lines of the magnet are interfered with by the magnetic conductor to form a complex magnetic field, thereby effectively changing the pattern printed by the magnetic orientation device and making the printed pattern easy to identify. Furthermore, the magnetic orientation device of this application has a simple structure, and the magnet can be a conventional permanent magnet without special processing. The position of the magnet can be fixed, which not only provides advantages in printing speed, quantity, and method, but also results in better consistency of the printed pattern.

[0008] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the technical solutions of this application.

[0010] Figure 1 This is a schematic diagram of the structure of the first embodiment of the magnetic orientation device of this application;

[0011] Figure 2 This is a schematic diagram of the magnet structure in the fourth embodiment of the magnetic orientation device of this application;

[0012] Figure 3 This is a schematic diagram of the magnet structure in a scaled magnetic orientation device;

[0013] Figure 4 This is a schematic diagram of an observation method for observing a magnetically fixed pattern obtained by a magnetic orientation device.

[0014] Figure 5 This is a schematic diagram showing the effect of a fixed magnetic pattern obtained by a proportional magnetic orientation device at different viewing angles;

[0015] Figure 6 This is an assembly diagram of the first embodiment of the magnetic orientation device of this application;

[0016] Figure 7 This is a schematic diagram of the effect of the magnetic orientation pattern obtained by the first embodiment of the magnetic orientation device of this application at different viewing angles when the magnetic orientation height is 0mm.

[0017] Figure 8 This is a schematic diagram of the effect of the magnetic orientation pattern obtained by the first embodiment of the magnetic orientation device of this application at different viewing angles when the magnetic orientation height is 10mm.

[0018] Figure 9 This is a schematic diagram of the effect of the magnetic orientation pattern obtained by the first embodiment of the magnetic orientation device of this application at different viewing angles when the magnetic orientation height is 20mm.

[0019] Figure 10 This is a schematic diagram of the structure of the second embodiment of the magnetic orientation device of this application;

[0020] Figure 11 This is a schematic diagram of the magnet structure in the third embodiment of the magnetic orientation device of this application;

[0021] Figure 12 This is a schematic diagram of the structure of the third embodiment of the magnetic orientation device of this application;

[0022] Figure 13 This is a schematic diagram of the structure of the fourth embodiment of the magnetic orientation device of this application;

[0023] Figure 14 This is a schematic diagram of the structure of the fifth embodiment of the magnetic orientation device of this application;

[0024] Figure 15This is a schematic diagram of the magnet structure in the sixth embodiment of the magnetic orientation device of this application;

[0025] Figure 16 This is a schematic diagram of the structure of the sixth embodiment of the magnetic orientation device of this application;

[0026] Figure 17 This is a structural schematic diagram of the seventh embodiment of the magnetic orientation device of this application;

[0027] Figure 18 This is a schematic diagram of the structure of the eighth embodiment of the magnetic orientation device of this application;

[0028] Figure 19 This is a structural schematic diagram of the ninth embodiment of the magnetic orientation device of this application;

[0029] Figure 20 This is a schematic diagram of the structure of the tenth embodiment of the magnetic orientation device of this application;

[0030] Figure 21 This is a schematic diagram of the structure of the eleventh embodiment of the magnetic orientation device of this application;

[0031] Figure 22 This is a schematic diagram of the structure of an embodiment of the printing equipment of this application. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present application and simplifying the description, and do not imply that the device or element involved must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present application.

[0035] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] like Figure 1 As shown, the magnetic orientation device 10 proposed in this application includes a magnet 11 and a magnetic conductor 12. The magnet 11 has a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., the magnetization direction) of the magnet 11. The magnetic conductor 12 is at least partially located within the through hole 111 of the magnet 11, such as... Figure 2 As shown, the magnetic field lines of the magnet 11 can be guided by the magnetic conductor 12 disposed within the through hole 111. That is, the magnetic conductor 12 interferes with the magnetic field lines of the magnet 11 to form a complex magnetic field, effectively altering the pattern printed by the magnetic orientation device 10 and making the printed pattern easily identifiable. Furthermore, the magnetic orientation device 10 of this application has a simple structure, and the magnet 11 can be a conventional permanent magnet, requiring no special processing. Moreover, the position of the magnet 11 can be fixed, offering advantages in printing speed, quantity, and method, and resulting in better consistency of the printed pattern.

[0038] Optionally, magnet 11 can be any type of magnet, such as a permanent magnet or a soft magnet. The material of magnet 11 is also not limited; it can be various magnetic materials, such as metallic magnetic materials and non-metallic magnetic materials. Metallic magnetic materials mainly include electrical steel, nickel-based alloys, and rare-earth alloys, while non-metallic magnetic materials mainly include ferrite materials.

[0039] The shape of the magnet 11 is not limited. For example, the magnet 11 can be cylindrical, cuboid, elliptical, etc. Optionally, the magnet 11 has two end faces spaced apart along the magnetization direction. The end faces can be rectangular or triangular, and can be planar or curved.

[0040] The length of the magnet 11 can range from 5mm to 100mm, but is not limited to this. Further, the length of the magnet 11 can range from 10mm to 100mm. More preferably, the length of the magnet 11 can range from 20mm to 50mm. Most preferably, the length of the magnet 11 can range from 30mm.

[0041] The width of the magnet 11 can range from 5mm to 100mm, but is not limited to this. Further, the width of the magnet 11 can range from 10mm to 50mm. More preferably, the width of the magnet 11 can range from 15mm to 50mm. Most preferably, the width of the magnet 11 can range from 20mm.

[0042] The height of the magnet 11 can range from 2mm to 50mm, but is not limited to this. Further, the height of the magnet 11 can range from 2mm to 20mm. More preferably, the height of the magnet 11 can range from 3mm to 15mm. Most preferably, the height of the magnet 11 can range from 5mm to 10mm.

[0043] The magnetic orientation device 10 of this application can be used to change the orientation of magnetic pigment flakes in the magnetic ink on the main surface of the substrate to achieve magnetic orientation. The magnetic orientation device 10 can be installed within a printing apparatus. When the magnetic orientation device 10 is in use, the magnet 11 can point towards the main surface of the substrate along a first direction. The main surface of the substrate can refer to the surface with the largest area of ​​the substrate, or the surface of the substrate printed with magnetic ink.

[0044] To facilitate the magnetic orientation of the magnetic ink on the substrate using the magnetic orientation device 10, the angle between the magnetization direction of the magnet 11 in the magnetic orientation device 10 and the main surface of the substrate can be in the range of [60°, 120°]. More preferably, the magnetization direction of the magnet 11 in the magnetic orientation device 10 is approximately perpendicular to the main surface of the substrate, that is, the central axis of the through hole 111 on the magnet 11 can be perpendicular to the main surface of the substrate.

[0045] The magnetic field strength of magnet 11 can be set according to the actual situation such as the size of the substrate and / or the size of the printing device, and is not limited here. For example, the magnetic field strength of magnet 11 can be 200mt to 500mt. More preferably, the magnetic field strength of magnet 11 can be 300mt to 400mt. Most preferably, the magnetic field strength of magnet 11 can be 350mt.

[0046] The distance between the substrate and the magnet 11 in the first direction can be set according to actual conditions such as the magnetic strength of the magnet 11, the size of the substrate, and / or the size of the printing apparatus, and is not limited here. For example, the distance between the substrate and the magnet 11 in the first direction can be 0mm to 50mm. Further, the distance between the substrate and the magnet 11 in the first direction can be 0mm to 10mm. More preferably, the distance between the substrate and the magnet 11 in the first direction can be 0mm to 1.5mm. Most preferably, the distance between the substrate and the magnet 11 in the first direction can be 0mm to 1mm.

[0047] The shape of the through hole 111 opened on the magnet 11 is not limited. For example, a cylindrical through hole, a square columnar through hole, or an elliptical cylindrical through hole can be opened.

[0048] The size of the through hole 111 opened on the magnet 11 is also not limited. For example, the radius of the through hole 111 can be 1mm-6mm.

[0049] Furthermore, the shape and / or size of the cross-section of the through hole 111 can remain constant along the axial direction of the through hole 111, i.e., the through hole 111 can be a hole of constant diameter. Of course, in some embodiments, the shape and / or size of the cross-section of the through hole 111 can vary along the axial direction of the through hole 111. For example, the diameter of the cross-section of the through hole 111 can gradually decrease along the axial direction of the through hole 111. Or, for another example, the diameter of the cross-section of the through hole 111 can gradually decrease and then remain constant along the axial direction of the through hole 111.

[0050] The number of through holes 111 formed on the magnet 11 is unlimited. For example, Figure 1 As shown, a through hole 111 can be formed in the magnet 11. For example, as... Figure 2 As shown, multiple through holes 111 can also be opened on the magnet 11.

[0051] For a magnet 11 with a through hole 111, a magnetic conductor 12 can be provided in the through hole 111 to interfere with the magnetic field lines of the magnet 11, thereby forming a complex magnetic field, which can effectively change the pattern printed by the magnetic orientation device 10 and make the pattern printed by the magnetic orientation device 10 easy to identify.

[0052] In this application, the magnet 11 and the magnetic conductor 12 can be arranged in a single layer. That is, the magnetic orientation device 10 can have only a single-layer structure, which is highly user-friendly and has good practicality. Here, "single-layer arrangement" means that the magnet 11 and the magnetic conductor 12 are located in the same layer, and it does not limit whether each magnet 11 / each magnetic conductor 12 is a single-layer structure or a multi-layer structure. That is, each magnet 11 / each magnetic conductor 12 can be a single-layer structure or a multi-layer structure. The above description can also be understood as at least one magnet 11 and at least one magnetic conductor 12 being laid flat in a direction perpendicular to the first direction. Alternatively, when the magnetic orientation device 10 includes multiple magnets 11 and multiple magnetic conductors 12, the multiple magnets 11 and multiple magnetic conductors 12 can be laid flat along a curved surface. In a specific example, the magnetic orientation device 10 may include a roller 13, and a plurality of magnets 11 and a plurality of magnetic conductors 12 may be laid flat along the outer surface of the roller 13. In this way, the magnets 11 for setting the magnet are placed on the transmission device, saving overall printing time and space, and obtaining a special magnetization effect.

[0053] Optionally, the shape of the magnetic conductor 12 may be consistent with the shape of the through hole 111 opened on the magnet 11. For example, when the through hole 111 opened on the magnet 11 is a cylindrical through hole 111, the magnetic conductor 12 may also be cylindrical. Of course, in other embodiments, the shape of the magnetic conductor 12 may also differ from the shape of the through hole 111 opened on the magnet 11.

[0054] Furthermore, the size of the magnetic conductor 12 can be the same as the size of the through hole 111 on the magnet 11, meaning the shape and size of the magnetic conductor 12 and the through hole 111 on the magnet 11 can be perfectly matched. This allows for a transitional fit between the through hole 111 and the magnetic conductor 12 disposed therein, facilitating the fixation of the relative positions of the magnetic conductor 12 and the magnet 11. Of course, in other embodiments, the size of the magnetic conductor 12 can also be different from the size of the through hole 111 on the magnet 11. For example, the outer diameter of the magnetic conductor 12 can be smaller than the inner diameter of the through hole 111 on the magnet 11, allowing for a clearance fit between the through hole 111 and the magnetic conductor 12 disposed therein.

[0055] At least one end of the magnetic conductor 12 may be flush with the surface of the magnet 11. Alternatively, at least one end of the magnetic conductor 12 may protrude through the through hole 111, for example, the end of the magnetic conductor 12 facing the substrate may protrude through the through hole 111. In other embodiments, the magnetic conductor 12 may be disposed submerged in the through hole 111.

[0056] The magnetic conductor 12 can be made of ferromagnetic materials such as iron, electrical steel, magnetic stainless steel, ferrite, nickel, and nickel-based alloys.

[0057] The magnetic conductor 12 can also serve as a fastener for fixing the magnet 11. Thus, the through hole 111 and the magnetic conductor 12 are both structures for fixing the magnet 11 and structures for generating a fixed magnetization effect. For example, screws or bolts made of ferromagnetic materials can be used as the magnetic conductor 12.

[0058] When a plurality of through holes 111 are provided on the magnet 11, a magnetic conductor 12 can be provided in at least a portion of the through holes 111 of the magnet 11. More preferably, a magnetic conductor 12 can be provided in each through hole 111 of the magnet 11, so that each magnetic conductor 12 can guide the magnetic field lines around it. Thus, the magnetic field formed by each magnetic conductor 12 and the surrounding area of ​​the magnet 11 can be used to magnetically orient the magnetic ink on the substrate. In this way, when a plurality of through holes 111 are provided on the magnet 11, multiple magnetic inks on the substrate can be magnetically oriented through the multiple through holes 111 and their respective corresponding magnetic conductors 12, thereby enabling batch magnetic orientation.

[0059] Furthermore, the magnetic orientation device 10 may include a plurality of magnets 11, which may be arranged in an array. Each magnet 11 has at least one through hole 111 and a magnetic conductor 12 is provided in the at least one through hole 111 of each magnet 11, so that magnetic orientation can be performed in batches through the plurality of magnets 11 and the plurality of magnetic conductors 12, thereby meeting the needs of mass printing production.

[0060] Optionally, the magnets 11 can be fitted together, and opposite magnets 11 can be opposite poles, that is, the north pole of one magnet 11 is opposite the south pole of its neighboring magnet 11. In this way, no other fasteners are needed, and the two adjacent magnets 11 can be relatively stationary, which is convenient for printing. Of course, in other embodiments, adjacent magnets 11 can be spaced apart. In this case, the two opposite magnets 11 can be opposite poles or same poles.

[0061] To better illustrate the magnetic orientation device 10 described above, the following specific embodiments of the magnetic orientation device 10 are provided for illustrative purposes:

[0062] Comparative Example

[0063] like Figure 3 As shown, the magnetic orientation device 10 includes a magnet 11. This magnet 11 has a through-hole 111 at its center, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A substrate printed with magnetic ink is placed on... Figure 3 A fixed magnetic pattern can be obtained in the magnetic field generated by the magnetic orientation device 10 shown. During magnetic orientation, the magnet 11 points towards the main surface of the substrate along the first direction. Figure 4By observing the magnetic orientation device 10 printed with the fixed magnetic pattern in this embodiment through rotation around the axis, it can be obtained that... Figure 5 The diagram shows the effect at different viewing angles [0°→45°]. Figure 5 As can be seen, the magnetic orientation device 10 in this comparative example has only one circle on its magnetic orientation pattern.

[0064] Example 1

[0065] like Figure 1 and Figure 6 As shown, the magnetic orientation device 10 includes a magnet 11 and a magnetic conductor 12. The magnet 11 has a through-hole 111 at its center, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. Along the axial direction of the through-hole 111, the diameter of the cross-section of the through-hole 111 gradually decreases and then remains constant. The magnetic conductor 12, whose size perfectly matches the through-hole 111, is inserted into the through-hole 111. A substrate printed with magnetic ink is placed on... Figure 1 A fixed magnetic pattern can be obtained in the magnetic field generated by the magnetic orientation device 10 shown. During magnetic orientation, the magnet 11 points towards the main surface of the substrate along the first direction. Figure 4 By observing the magnetic orientation device 10 printed with the fixed magnetic pattern in this embodiment through rotation around the axis, it can be obtained that... Figure 7 The diagram shown illustrates the effects at different viewing angles when the magnetic height (distance between the substrate and the magnetic orientation device 10) is 0. Figure 8 The diagram shown illustrates the effects at different viewing angles when the magnetic field height is 10mm. Figure 9 The diagram shows the effect at different viewing angles when the magnetic field height is 20mm. From Figure 7 It can be seen that by providing a magnetic conductor 12 within the through hole 111 of the magnet 11, the magnetic field of the magnetic orientation device 10 can be changed, thereby making the magnetic pattern of this embodiment significantly different from the magnetic pattern of the comparative example, such as... Figure 7 As shown, the magnetic field pattern in this embodiment exhibits a "sun at its zenith" phenomenon. After comparison... Figure 7 , Figure 8 and Figure 9 It can be seen that changing the magnetic stationary height can cause a significant change in the magnetic stationary pattern. Specifically, in Figure 8 The central magnetic pattern exhibits a "crescent moon effect." When viewed from directly above (0°), it is essentially a circular surface; however, a "crescent moon" shadow appears when viewed from the side at 30° and 45°. Furthermore, in... Figure 9 The "crescent" effect is stronger when the central magnetic pattern is applied.

[0066] Example 2

[0067] like Figure 10As shown, the magnetic orientation device 10 includes a magnet 11 and a magnetic conductor 12. The magnet 11 has a through-hole 111 at its center, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. Along the axial direction of the through-hole 111, the diameter of the cross-section of the through-hole 111 gradually decreases and then remains constant. The magnetic conductor 12, whose size perfectly matches the through-hole 111, is embedded in the through-hole 111, and the magnetic conductor 12 can be recessed within the through-hole 111, meaning that one end surface of the magnetic conductor 12 is lower than the surface of the magnet 11. During magnetic orientation, the magnet 11 points towards the main surface of the substrate along a first direction, thus the distance between the substrate and the magnetic conductor 12 in the first direction is greater than the distance between the magnet 11 and the substrate in the first direction.

[0068] Example 3

[0069] like Figure 11 and Figure 12 As shown, the magnetic orientation device 10 includes a magnet 11 and a magnetic conductor 12. The magnet 11 has a through-hole 111 at its center, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. The diameter of the through-hole 111's cross-section remains constant along its axial direction; that is, the through-hole 111 is a constant-diameter hole. The magnetic conductor 12, whose size perfectly matches the through-hole 111, is embedded in the through-hole 111, with one end of the magnetic conductor 12 extending beyond the surface of the magnet 11. During magnetic orientation, the magnet 11 points towards the main surface of the substrate along a first direction, thus the distance between the substrate and the magnetic conductor 12 in the first direction is less than the distance between the magnet 11 and the substrate in the first direction.

[0070] Example 4

[0071] like Figure 2 and Figure 13 As shown, the magnetic orientation device 10 includes an ellipsoidal magnet 11 and a plurality of magnetic conductors 12. The magnet 11 has a plurality of through holes 111, and the central axis of the through holes 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. The plurality of magnetic conductors 12, whose dimensions perfectly match those of the through holes 111, are embedded one-to-one into the through holes 111. During magnetic orientation, the magnet 11 points towards the main surface of the substrate along a first direction.

[0072] Example 5

[0073] like Figure 14As shown, the magnetic orientation device 10 includes multiple cuboid magnets 11. The magnets 11 are arranged in an array, with adjacent magnets 11 fitted together and opposite poles. Each magnet 11 has a through-hole 111, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A magnetic conductor 12, whose size perfectly matches the through-hole 111, can be embedded into the through-hole 111 of the magnet 11.

[0074] Example 6

[0075] like Figure 15 and Figure 16 As shown, the magnetic orientation device 10 includes multiple triangular prism-shaped magnets 11. The magnets 11 are arranged in an array, with adjacent magnets 11 fitted together and opposite poles. Each magnet 11 has a through-hole 111, and the central axis of the through-hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A magnetic conductor 12, whose size perfectly matches the through-hole 111, can be embedded into the through-hole 111 of the magnet 11.

[0076] Example 7

[0077] like Figure 17 As shown, the magnetic orientation device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are evenly distributed around the outer periphery of the roller 13, with adjacent magnets 11 spaced apart and aligned. Each magnet 11 has a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A magnetic conductor 12, whose size perfectly matches the through hole 111, can be embedded into the through hole 111 of the magnet 11.

[0078] Example 8

[0079] like Figure 18 As shown, the magnetic orientation device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are evenly distributed around the outer periphery of the roller 13, and the outer surface of the roller 13 is completely covered by the magnets 11, resulting in high flatness of the magnetic orientation device 10. Adjacent magnets 11 are fitted together and opposite in orientation. Each magnet 11 has a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A magnetic conductor 12, whose size perfectly matches the through hole 111, can be embedded into the through hole 111 of the magnet 11.

[0080] Example 9

[0081] like Figure 19As shown, the magnetic orientation device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are embedded in the roller 13, with adjacent magnets 11 spaced apart and aligned. Each magnet 11 has a through hole 111, and the central axis of the through hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A magnetic conductor 12, whose size perfectly matches the through hole 111, can be embedded into the through hole 111 of the magnet 11.

[0082] Example 10

[0083] like Figure 20 As shown, the magnetic orientation device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are uniformly embedded in the roller 13, with adjacent magnets 11 spaced apart and aligned. Each magnet 11 has a plurality of through holes 111, and the central axis of each through hole 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A plurality of magnetic conductors 12, whose dimensions perfectly match those of the through holes 111, are correspondingly embedded in each of the through holes 111.

[0084] Example 11

[0085] like Figure 21 As shown, the magnetic orientation device 10 includes a roller 13 and a plurality of magnets 11. The magnets 11 are evenly distributed around the outer periphery of the roller 13, and the outer surface of the roller 13 is completely covered by the magnets 11, resulting in high flatness of the magnetic orientation device 10. Adjacent magnets 11 are fitted together and opposite in orientation. Each magnet 11 has a plurality of through holes 111, and the central axis of the through holes 111 is parallel to the magnetization direction (i.e., the N / S axis) of the magnet 11. A plurality of magnetic conductors 12, whose dimensions perfectly match those of the through holes 111, are embedded one-to-one into the through holes 111.

[0086] This application also provides a printing apparatus 4. For example... Figure 22 As shown, the printing equipment 4 may include the magnetic orientation device 10 described above. This magnetic orientation device 10 is any of the magnetic orientation devices 10 provided in the above embodiments, and has corresponding technical features and effects, which will not be elaborated further here.

[0087] Furthermore, the printing equipment may also include a printing device 41, a conveying device 42, and a curing device 43. The conveying device 42 is used to convey the substrate 2 through the printing device 41, the magnetic orientation device 10, and the curing device 43 in sequence. The printing device 41 is used to print magnetic ink on the main surface, the magnetic orientation device 10 is used to magnetically orient the magnetic ink, and the curing device 43 is used to cure the magnetically oriented ink.

[0088] This application also provides a method for manufacturing a magnetic pattern. The method for manufacturing a magnetic pattern includes...

[0089] S1: Apply magnetic ink to the main surface of the substrate.

[0090] S2: Orient the magnetic pigment flakes in the magnetic ink using a magnetic orientation device.

[0091] A magnetic orientation device can be provided on one side of the substrate. The magnetic orientation device of this application can change the orientation of the magnetic pigment flakes in the magnetic ink on the main surface of the substrate by forming a composite magnetic field between the annular magnet and the block magnet.

[0092] S3: Curing the magnetic ink.

[0093] After orienting the magnetic pigment flakes in the magnetic ink using a magnetic orientation device, the ink layer can be cured to form a ring-shaped three-dimensional optical pattern. Through the above series of steps, this embodiment utilizes the combined magnetic field formed by the interaction of the ring-shaped magnet and the block magnet in the magnetic orientation device to form a unique ring-shaped three-dimensional optical pattern in the magnetic ink. The pattern has a good three-dimensional effect and can improve the magnetic anti-counterfeiting effect.

[0094] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

[0095] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A magnetic orientation device, characterized in that, The magnetic orientation device includes: A magnet having a through hole, wherein the central axis of the through hole is parallel to the magnetization direction of the magnet; A magnetic conductor is embedded in the through hole, the size of the magnetic conductor is the same as the size of the through hole opened on the magnet, and the magnetic conductor and the magnet are in a transition fit. The number of magnets is multiple, and the multiple magnets are arranged in an array, with adjacent magnets attached to each other and opposite poles facing each other.

2. The magnetic orientation device according to claim 1, characterized in that, Each of the magnets has at least one through hole, and each of the magnets has a magnetic conductor inside at least one through hole.

3. The magnetic orientation device according to claim 2, characterized in that, The magnet has two end faces spaced apart along the magnetization direction. The end faces are rectangular or triangular, and are either planar or curved.

4. The magnetic orientation device according to claim 2, characterized in that, The magnetic orientation device includes a non-magnetic roller, with multiple magnet arrays arranged around the outer periphery of the roller, or multiple magnet arrays embedded in the roller.

5. The magnetic orientation device according to any one of claims 1-3, characterized in that, The magnet has multiple through holes, and each through hole contains a magnetic conductor.

6. The magnetic orientation device according to claim 1, characterized in that, At least one end of the magnetic conductor is flush with the surface of the magnet, or at least one end of the magnetic conductor extends through the through hole, or at least one end of the magnetic conductor is submerged in the through hole.

7. The magnetic orientation device according to claim 1, characterized in that, The inner diameter of one end of the through hole is greater than or equal to the inner diameter of the other end.

8. The magnetic orientation device according to claim 1, characterized in that, In the operating state of the magnetic orientation device, the distance between the magnet and the substrate along the first direction is 0mm to 100mm, and the first direction points to the main surface of the substrate.

9. A printing apparatus, characterized in that, The printing equipment includes the magnetic orientation device as described in any one of claims 1-8.

Images